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Responsible For An Sash Windows Cambridge Budget? 12 Tips On How To Spend Your Money
How to Restore Timber Sash Windows in Cambridge

Many homes in Cambridge have traditional sash windows and homeowners are proud of how they appear. However, sash windows can get stuck and be difficult to open or close. This is usually due to moisture, which can cause the wood to expand.

Traditionally, window boxes used chains, cotton cords or weights made of lead to operate. Modern window springs for sash windows are concealed to eliminate this issue.

1. Aesthetics

In contrast to PVC-u windows, which are manufactured according to the modular imperial size Timber sash windows can be restored to their original dimensions. This allows the restoration to meet modern day energy requirements while still complying with conservation areas regulations. It also offers a window that is far superior to uPVC options.

Sliding sash window frames were initially only used for large buildings or public buildings. However, this changed when production became less expensive and craftsmen could create larger frames using greater glass. At the close of the 18th century, sash windows had become the most popular wooden design in British homes. Since they were easy to open sash windows allowed light into rooms without curtains.

Early windows were simple glass, but by the 17th century, sash windows began to become more decorative with coloured glazing bars and moulded mullions. These windows were quite expensive at the time but as glass production improved and less expensive, they were a common feature in many period houses.

In the 19th century it was possible to create large, strong glass that did not require supporting bars. This allowed the frame's size to be enlarged more, which in turn allowed for a wider view out of the window. This was a very important advancement.

The introduction of the double-hung sliding sash was another important improvement that was made at the end of the I920s and at the beginning of the I930s. This allowed both the upper and lower sash to be opened at the same time and gave improved ventilation to a building.

Oak was used for older examples and for more prestigious buildings. A parting bead separates the two sashes, and it is important that this is maintained in order to avoid rattles and drafts. The idler wheels, sash pulleys and sash rollers are also crucial for the proper operation of the window.

2. Energy efficiency

Sash windows replaced hinged cases as larger and clearer sheets became available. Plate glass was placed in frames of timber that were rebated, then secured with glazing sprigs and putty was then sprayed onto the frame's sides for watertightness. This kind of glass gradually replaced the leaded light bulbs.

The introduction of sashes led to the need for a wider range of ironmongery, with the most basic fittings being brass pulleys, lead (and later cast iron) weights, sash stoppers shutter hinges and knobs as well as a range of fasteners used to keep the sashes to their place. They were often decorated with motifs, inscriptions, and engravings that identified the maker.

Sash windows are energy-efficient with regular maintenance. However, if they are not maintained, they may become drafty and let in cold air. Paint and putty may cause draughts. This can be fixed by using wood-to-timber repair products that are specifically designed for this purpose.

The market for replacement windows is based heavily on the notion that old windows are beyond repair and are not able to be maintained economically. However they can be maintained with a little attention. These repairs can be expensive and cause many disruptions in the home. Many homeowners opt to replace their windows using PVC-u from a large "one-stop shop" company for installation. They can take down and replace all windows in a house in just one day, avoiding the need to coordinate multiple tradesmen and making the whole process much quicker. These windows can be fitted with 'energy-saving' double glazing to achieve more energy efficient ratings than a traditional sash window. Double-glazed windows aren't able to replicate the proportions and section of sashes from old timber.

3. Security

Traditional windows can be made more secure without compromising their aesthetics. Ironmongery such as mortice bolts, sash chain, and sash lock can be put in place. They can be fitted so that the window remains capable of being opened for ventilation or for cleaning. These are typically not noticeable, since they are designed to complement the sash window. They can be used in conjunction with traditional sash-window catches that should be replaced with more robust models (such ones with double screws) or spring-loaded levers to minimize the possibility of them being hammered out.

Sash-window frames are usually constructed from oak or slow-grown deal. Where glazing bars have survived they should be kept and where possible, the timber of the cill should be replaced by identical wood. Many PVC-U firms provide a one-stop shop installation service. They can take down and replace windows on an entire home in a single day, without the need to involve other tradespeople.

4. Ventilation

When sash windows first introduced in the 17th century they allowed a significant amount of light into the buildings. At the end of the 18th century, they were adapted to allow even more light into rooms and larger glazing panes began to be produced. The result was a lighter look and windows that were more elegant.

The introduction of sash windows also necessitated an entirely new range of ironmongery. Early pulleys were made from wood. Later Victorian ones were made of brass or a combination of leaded and wood. There were also a variety of types of knobs and shutter hinges. These ironmongery pieces must be cleaned and preserved to appreciate their fine design.

To ensure they remain in good condition, wooden windows require regular maintenance. A lack of attention to them regularly could cause:

Sashes that do not slide easily.

Holes in the frame which allow water to get in and cause damage and decay.

break down of the putty and allow water to penetrate, which could lead to decay of the frame and cill.


In the I920s and the I930s steel casement windows grew in popularity due to their durability, slim and cheap and also matched the fashion for healthy living. Research has shown that softwood sash windows are just as effective as PVC-u windows and can even be more attractive.

The replacement window industry has made a significant effort to convince homeowners that their old windows are rotten, draughty and beyond economic repair. Many old timber windows are repairable and can be used for many more years with minor repairs.

5. Maintenance

A traditional sash window needs regular maintenance and inspection. If you don't maintain your sash window, it can lead to the sash cords breaking, and the glazing bars wearing out excessively. It can also cause paint and putty degrade. The removal of sashes may also result in structural movement within the frame, which can cause the sash to not close properly. The sash may also become stuck in an open position, which allows water and draughts into the building.

Moisture penetration is a frequent cause of damage to timber windows. This can be avoided by thorough painting, regular repairs and elimination of the cause of dampness. The paint can be removed to expose the soft, decaying wood. Any rotten sections of timber should be cut out and the affected area carefully scarfed or pieced in using replacements made of the same kind of timber as those remaining. This method of repair increases the amount of fabric used in the first place and is one of most non-invasive methods to treat timber-to-timber rot.

A resin-based wood condenser is an alternative to traditional process of sanding or staining. window installation cambridge is brushed onto the surface of the wood to stabilise and protect it from further damage. It is particularly beneficial for the treatment of pulleys and sash cords where it can help to prevent breakage.

It is crucial that any ironmongery from the past like sash stays and latches be kept and rehabilitated instead of being replacing them. These items are difficult to replace without damaging the quality of the original design. It is recommended that the use of modern aluminum fittings like chain stays and sash lifts is avoided whenever feasible as they could cause corrosion and damage to frames and sashes made of timber.

Homepage: https://www.repairmywindowsanddoors.co.uk/cambridge-windowrepair/